Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
150010excellentexcellent21excellent
14009excellentexcellent11excellent
130011excellentexcellent21excellent
120014excellentexcellent21excellent
110014excellentexcellent21excellent
100019excellentexcellent21excellent
090029goodexcellent31excellent
080034goodexcellent51excellent
070041goodexcellent51excellent
060038goodexcellent51excellent
050033goodexcellent41excellent
040032goodexcellent31excellent
030032goodexcellent31excellent
020026goodexcellent21excellent
010026goodexcellent31excellent
000027goodexcellent31excellent
230021goodexcellent21excellent
220034goodexcellent41excellent
210030goodexcellent31excellent
200021goodexcellent21excellent
190010excellentexcellent11excellent
18009excellentexcellent11excellent
17009excellentexcellent11excellent
160016excellentexcellent11excellent